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Wheel spacer fitment on C450

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Old Jun 18, 2016 | 09:04 PM
  #1  
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Wheel spacer fitment on C450

Hi all

Lots of discussion in various threads about the ideal and safe fitment of different wheel spacer thicknesses on the C450. This may also apply to C43 owners as well, given my assumption that that car also has the same control arm setup as the 450 and thus, wheels and spacers need to be carefully applied.

I have researched various thicknesses of spacers and heard from users about the sizes they've gone with. Ultimately I wanted to see for myself what looked 'right' and what fit, so I ordered the rental fit kit from ECS Tuning that allows you to check various sizes and then return the kit for a credit on your spacer order.

The pics depict what I ultimately landed on - OEM wheels with 15mm spacers in rear and 10mm up front. They will be hub centric, of course, so I hope to have no issues with vibration. The images from the front are shown at center wheel position as well as full left and right lock to give a visual of clearance at these turn angles.

Hope this may help anyone looking for spacers. I'll post pics of the finished car once I've installed all four wheels.










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Old Jun 18, 2016 | 09:33 PM
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Originally Posted by BeemerToBenz
Hi all

Lots of discussion in various threads about the ideal and safe fitment of different wheel spacer thicknesses on the C450. This may also apply to C43 owners as well, given my assumption that that car also has the same control arm setup as the 450 and thus, wheels and spacers need to be carefully applied.

I have researched various thicknesses of spacers and heard from users about the sizes they've gone with. Ultimately I wanted to see for myself what looked 'right' and what fit, so I ordered the rental fit kit from ECS Tuning that allows you to check various sizes and then return the kit for a credit on your spacer order.

The pics depict what I ultimately landed on - OEM wheels with 15mm spacers in rear and 10mm up front. They will be hub centric, of course, so I hope to have no issues with vibration. The images from the front are shown at center wheel position as well as full left and right lock to give a visual of clearance at these turn angles.

Hope this may help anyone looking for spacers. I'll post pics of the finished car once I've installed all four wheels.


[IMG]https://cimg7.ibsrv.net/gimg/www.mbworld.org-vbulletin/2000x1504/80-image_25dc2d41a71ef517f169e962d795eba6a4d74f33.jpM G]

[IMG]https://cimg9.ibsrv.net/gimg/www.mbworld.org-vbulletin/2000x1504/80-image_d1c5b8f231ff2be3e9ca1275abd3972332583545.jpG]

[IMG]https://cimg0.ibsrv.net/gimg/www.mbworld.org-vbulletin/2000x1504/80-image_da8e2806d3fc6f97c723165492879c8d6dbc7fe8.jpe MG]

[IMG]https://cimg1.ibsrv.net/gimg/www.mbworld.org-vbulletin/2000x1504/80-image_cacddae47f7d93c14b51a581a3c109d6c56d7eaf.jpM G]

[IMG]https://cimg5.ibsrv.net/gimg/www.mbworld.org-vbulletin/2000x1504/80-image_888fd7a93a218a7f46bc409c19c88a3f8063c8ea.jpM G]
thanks man! cool.

I had a set of 10's from ECS Tuning that did not fit the back of the hub of the wheel.

So I ordered 12's for the rear from H&R. I, personally, think the 15 is a bit too much.

I am doing 4/12 F and R, respectively. Appreciate the post.
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Old Jun 18, 2016 | 09:34 PM
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In this shot, do you have 15 on the rears? Also, are those the stock tires the car came with? Mine have a bit more stretch on the rim than pictured here, which will change fitment.

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Old Jun 18, 2016 | 09:38 PM
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Originally Posted by alexasa
In this shot, do you have 15 on the rears? Also, are those the stock tires the car came with? Mine have a bit more stretch on the rim than pictured here, which will change fitment.

This shot has nothing in the rear, just front. And, yes, these are the OEM tires.
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Old Jun 19, 2016 | 07:40 AM
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Originally Posted by BeemerToBenz
This shot has nothing in the rear, just front. And, yes, these are the OEM tires.
cool, thanks again.

I have the pirelli's and they definitely fit a bit different (fairly common for different brands).
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Old Jun 19, 2016 | 02:48 PM
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Originally Posted by alexasa
cool, thanks again.

I have the pirelli's and they definitely fit a bit different (fairly common for different brands).
Did you switch after the OEMs wore out or for other reasons? What improvements (ride, etc) have you noticed?
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Old Jun 19, 2016 | 04:20 PM
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Originally Posted by BeemerToBenz
Did you switch after the OEMs wore out or for other reasons? What improvements (ride, etc) have you noticed?
They came OEM.

They are okay tires. Better than decent, but no PSS.
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Old Jun 19, 2016 | 06:35 PM
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PSS are the OEM tires the car should have had. PSS + 205 = Joy. RFs are noisy, stiff riding, prone to blow outs, expensive and have limited tread life. Other than that they're perfect.
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Old Jun 19, 2016 | 06:56 PM
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Originally Posted by Mike5215
PSS are the OEM tires the car should have had. PSS + 205 = Joy. RFs are noisy, stiff riding, prone to blow outs, expensive and have limited tread life. Other than that they're perfect.
Hmm, yes we (I) shall see how it goes with the Conti RFs I have. I had Bridgestone runflats on my Z4 and upon turn in, joy of joys, due to the rigid sidewall on those, the energy transferred from various pothole encounters meant I had to pay a few hundred bucks to have two cracked wheels welded before the dealer would pass the final inspection. Safe to say 'run flats suck'.
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Old Jun 19, 2016 | 08:35 PM
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do you need OEM runflats at lease turn in or can you put quality non RFs and turn the car in for lease?
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Old Jun 19, 2016 | 09:37 PM
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Originally Posted by InTheBenz0
do you need OEM runflats at lease turn in or can you put quality non RFs and turn the car in for lease?
Not sure what the lease gods hold you to in terms of tires. My experience has only been that they want treadwear within specs. Not sure on brands or type.
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Old Oct 5, 2016 | 07:11 PM
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Originally Posted by BeemerToBenz
Hi all

Lots of discussion in various threads about the ideal and safe fitment of different wheel spacer thicknesses on the C450. This may also apply to C43 owners as well, given my assumption that that car also has the same control arm setup as the 450 and thus, wheels and spacers need to be carefully applied.

I have researched various thicknesses of spacers and heard from users about the sizes they've gone with. Ultimately I wanted to see for myself what looked 'right' and what fit, so I ordered the rental fit kit from ECS Tuning that allows you to check various sizes and then return the kit for a credit on your spacer order.

The pics depict what I ultimately landed on - OEM wheels with 15mm spacers in rear and 10mm up front. They will be hub centric, of course, so I hope to have no issues with vibration. The images from the front are shown at center wheel position as well as full left and right lock to give a visual of clearance at these turn angles.

Hope this may help anyone looking for spacers. I'll post pics of the finished car once I've installed all four wheels.










I ordered these same spacers set up from ECS, what kind of seat bolts are you using on them? Part #? size?
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